2024年人教版九年级下册英语第四单元课后练习题（含答案和概念）

2024年人教版九年级下册英语第四单元课后练习题（含答案和概念）试题部分一、选择题：1.InUnit4,whichofthefollowingwordsisusedtodescribeapersonwhoisalwaysreadytohelpothers?A.generousB.friendlyC.helpfulD.polite2.WhatisthemainideaofthepassageinSectionA?A.Howtomakefriendswithothers.B.Theimportanceofhelpingeachother.C.Differentwaystoshowkindness.D.Howtobearesponsiblecitizen.A.selfishB.kindheartedC.strictD.lazy4.Whichofthefollowingsentencesisinthepassivevoice?C.Heishelpingtheoldmanacrossthestreet.D.Weshouldhelptheenvironmentrecycling.5.Whatdoesthephrase"makeadifference"meaninthecontextofthisunit?A.Tocauseachangeinsomeone'slife.C.Toshownodifference.D.Tohaveagoodinfluenceonothers.6.InSectionB,whichactivityismentionedasawaytohelptheenvironment?A.PlantingtreesB.EatingmoremeatC.UsingplasticbagsD.Littering7.Whatistheoppositeoftheword"generous"?A.selfishB.kindC.friendlyD.helpful8.Whichofthefollowingisamodalverb?A.goB.canC.likeD.doA.goB.goesC.goingD.gone10.Whatisthepastparticipleoftheverb"do"?A.didB.doneC.doD.does二、判断题：1.Theword"generous"meansbeingabletogivealotofmoneytoothers.()2.InUnit4,welearnthathelpingotherscanmakeusfeelhappyandfulfilled.()3.Theactivevoiceisalwaysmoreinterestingthanthepassivevoice.()4.Thephrase"makeadifference"meanstohavenoeffectonsomething.()5.Recyclingisanactivitythatcanhelpprotecttheenvironment.()6.Theoppositeof"selfish"is"kindhearted".()7.Modalverbscanbeusedtoexpresspossibilityorpermission.()8.Thepastparticipleof"go"is"gone".()9.Thesentence"Shegotothelibraryeveryweekend"iscorrect.()10.InEnglish,thepastparticipleisalwaysthesameasthepasttenseform.()三、填空题：1.Themodalverb"can"isoftenusedtoexpress________.2.Whenwehelpothers,it'simportanttodoit________.4.________istheactofgivingyourtimeorresourcestohelpsomeone.5.Onewaytobekindistooffera________whensomeoneisfeelingsad.6.________isavirtuethatmakesuswillingtosharewithothers.7.Theoppositeof"polite"is________.8.To"makeadifference"insomeone'slifemeansto________.9.________istheprocessofconvertingwastematerialsintonewmaterials.10.Thephrase"lendahand"meansto________.11.________isthequalityofbeingreadytogivemoreofsomethingthanisstrictlynecessaryorexpected.12.Whenwesaysomeoneis"selfless,"itmeanstheyare________.13.________istheactofthrowingwasteproductsinaninappropriateplace.15.Thepastparticipleof"take"is________.16."Could"isamodalverbthatcanexpress________orpastability.17.________isawaytoreusematerialsandreducewaste.18.Theword"environment"referstothe________inwhichlivingthingsexist.19.________istheactofusingsomethingagain,especiallyforadifferentpurposefromtheoriginal.20.________istheactionofdealingkindlyandgenerouslywithothers.四、简答题：2.Explainhowhelpingotherscanalsobenefityou.4.Giveanexampleofhowyoucanshowkindnesstoaclassmate.5.Whyisitimportanttobegenerouswithyourtimeandresources?6.Howcanyoumakeadifferenceinthelifeofafamilymember?7.Whatisthedifferencebetweentheactiveandpassivevoice?8.Whatisamodalverbandgivethreeexamples.9.Howcanrecyclinghelptheenvironment?10.Whyshouldweavoidlittering?一、选择题答案：1.C2.B3.B4.B5.A6.A7.A8.B9.B10.B二、判断题答案：1.×2.√3.×4.×5.√6.√7.√8.×9.×10.×三、填空题答案：1.abilityorpossibility2.selflessly3.area4.Help5.shouldertocryon6.Generosity7.rude8.positivelyimpact9.Recycling10.assist11.Generosity12.selfless13.Littering14.Plastic15.taken16.possibility17.Recycling18.surroundings19.Recycling20.Compassion四、简答题答案：2.Itcanimproveoursenseofwellbeingandcanleadtonewfriendships.3.Problems:pollution,deforestation,waste.Solutions:reduce,reuse,recycle,planttrees.4.Offertohelpwithhomeworkorshareschoolsupplies.6.Bylisteningtotheirproblemsandofferingsupportorhelpingwithchores.7.Activevoicefocusesonthedoeroftheaction,whilepassivevoicefocusesontheactionitself.8.Modalverbs:can,could,may,might,shall,should,will,would,must.Examples:can(ability),may(permission),must(necessity).9.Itreducestheneedfornewrawmaterials,savesenergy,andhelpscutdownonpollution.10.Itpollutestheenvironment,harmswildlife,andisunsightly.Grammar:Modalverbs,activeandpassivevoice,andpastparticiplesaretested.Phrases:Themeaningsofphraseslike'lendahand','makeadifference',and'selfless'areincluded.EnvironmentalAwareness:Questionsaboutenvironmentalissuesandsolutionsarepresent.KindnessandGenerosity:Thetestexaminestheconceptsofkindness,generosity,andtheirimportanceinsociety.各题型知识点详解和示例：选择题：Assessunderstandingofvocabulary,grammar,andphrasemeanings.Example:"Whichofthefollowingwordsisusedtodescribeapersonwhoisalwaysreadytohelpothers?"testsvocabulary.填空题：Testtherecallofvocabularyandgrammaticalstructures.Example:"The